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t_hmac.c revision 1.1 
      1 /*	$NetBSD: t_hmac.c,v 1.1 2016/07/02 14:52:09 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2016 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #include <sys/cdefs.h>
     32 __RCSID("$NetBSD: t_hmac.c,v 1.1 2016/07/02 14:52:09 christos Exp $");
     33 
     34 #include <atf-c.h>
     35 #include <string.h>
     36 #include <stdlib.h>
     37 #include <openssl/evp.h>
     38 #include <openssl/hmac.h>
     39 
     40 static void
     41 test(void)
     42 {
     43 	uint8_t         tmp1[EVP_MAX_MD_SIZE];
     44 	uint8_t         tmp2[EVP_MAX_MD_SIZE];
     45 	uint8_t key[256];
     46 	uint8_t data[4096];
     47 	unsigned int tmp1len;
     48 	size_t tmp2len;
     49 	int stop;
     50 	void *e1;
     51 	const void *evps[] = {
     52 		EVP_md2(),
     53 		EVP_md4(),
     54 		EVP_md5(),
     55 		EVP_ripemd160(),
     56 		EVP_sha1(),
     57 		EVP_sha224(),
     58 		EVP_sha256(),
     59 		EVP_sha384(),
     60 		EVP_sha512(),
     61 	};
     62 	const char *names[] = {
     63 		"md2",
     64 		"md4",
     65 		"md5",
     66 		"rmd160",
     67 		"sha1",
     68 		"sha224",
     69 		"sha256",
     70 		"sha384",
     71 		"sha512",
     72 	};
     73 
     74 	for (size_t k = 0; k < sizeof(key); k++)
     75 		key[k] = k;
     76 	for (size_t d = 0; d < sizeof(data); d++)
     77 		data[d] = d % 256;
     78 
     79 	for (size_t t = 0; t < __arraycount(names); t++)
     80 	    for (size_t i = 1; i < sizeof(key); i += 9)
     81 		for (size_t j = 3; j < sizeof(data); j += 111) {
     82 			stop = 0;
     83 #ifdef DEBUG
     84 			printf("%s: keysize = %zu datasize = %zu\n", names[t],
     85 			    i, j);
     86 #endif
     87 			memset(tmp1, 0, sizeof(tmp1));
     88 			memset(tmp2, 0, sizeof(tmp2));
     89 			e1 = HMAC(evps[t], key, i, data, j, tmp1, &tmp1len);
     90 			ATF_REQUIRE(e1 != NULL);
     91 			tmp2len = hmac(names[t], key, i, data, j, tmp2,
     92 			    sizeof(tmp2));
     93 			ATF_REQUIRE_MSG(tmp1len == tmp2len, "hash %s len %u "
     94 			    "!= %zu", names[t], tmp1len, tmp2len);
     95 			for (size_t k = 0; k < tmp2len; k++)
     96 				if (tmp1[k] != tmp2[k]) {
     97 #ifdef DEBUG
     98 					printf("%zu %.2x %.2x\n",
     99 					    k, tmp1[k], tmp2[k]);
    100 #endif
    101 					stop = 1;
    102 					break;
    103 				}
    104 			ATF_REQUIRE_MSG(!stop, "hash %s failed for "
    105 				"keylen=%zu, datalen=%zu", names[t], i, j);
    106 		}
    107 }
    108 
    109 ATF_TC(t_hmac);
    110 
    111 ATF_TC_HEAD(t_hmac, tc)
    112 {
    113 	atf_tc_set_md_var(tc, "descr",
    114 	    "Test hmac functions for consistent results");
    115 }
    116 
    117 ATF_TC_BODY(t_hmac, tc)
    118 {
    119 	test();
    120 }
    121 
    122 ATF_TP_ADD_TCS(tp)
    123 {
    124 	ATF_TP_ADD_TC(tp, t_hmac);
    125 	return atf_no_error();
    126 }
    127 
    128